In geometry, a translation is the shifting of a figure from one place to another without rotating, reflecting or changing its size. This is done by moving the vertices of the figure the prescribed number of spaces on a coordinate plane and then drawing the new figure.
These PFDs are designed to keep the wearer in a vertical position, but it is the wearersâ responsibility to maneuver themselves into a face-up position. Type III PFDs will keep unconscious wearers face-up just as well as a Type II vest.
Type V is the catchall category, containing life vests that donât fit into one of the Type I, II or III categories. This Offshore Automatic Inflatable vest is a Type V because it has a harness built into it for offshore sailing. Type V life jackets might have just the features you require for your style of boating. PFDs must be Coast Guard Approved, in good and serviceable condition, and the appropriate size for the intended user.